A vertical lathe worktable
control system comprises a cabinet body, a main circuit, an auxiliary
control circuit and a braking circuit, wherein the main circuit, the auxiliary
control circuit and the braking circuit are installed in the cabinet body. In the main circuit, alternating-current three-phase four-wire is connected with a power source input end of
transducer VVVF through a combination switch QF, an input power source filter and an alternating-current
contactor KM1. The output of main circuit is connected with a main
electric motor through an output power source filter. A PLC programmable controller is the core of auxiliary
control circuit. A braking unit comprises a
transducer braking mechanism, a braking
resistor box, a first
transducer frequency setting
potentiometer, a second transducer frequency setting
potentiometer, a second transducer inching frequency setting
potentiometer, a transducer
frequency meter and an
electromagnetic brake. The transducer VVVF is connected with the transducer braking mechanism. The vertical lathe worktable
control system of the invention has the advantages of simple structure, strong reliability, convenient speed adjustment,
energy consumption saving, increased operation speed and increased
cutting efficiency. The vertical lathe worktable
control system of the invention can be widely used on the
cutting mechanical device.